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The ancient literary languages of India and Iran become known --
The great linguistic groups of modern Europe : German, Slavonic, Celtic --
Lithuanian, Albania, Armenian --
The continued study of the classical languages --
The study of non-Indo-European families of languages --
Inscriptions and archæological discoveries : the study of the history of writing --
The methods of comparative linguistics --
Linguistic affinities of the Indo-Europeans, home, and civilization.